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track bike sizing(4 posts)

track bike sizingbikerchick
Aug 9, 2002 8:50 AM
Could someone give me a bit of guidance on track bike sizing? My road bike is a 52 top tube. I am looking at a track bike that is available either in 50 or 53 top tube. My LBS suggested going with the smaller frame -- they don't have them in stock to test ride. Do people agree with that even though the 53 is closer to the size of my road frame? Does it matter a lot one way or the other? (I'm just looking to train on it as a fixed gear and maybe go to the track occasionally.) Thanks.
re: track bike sizingSherpa23
Aug 9, 2002 3:02 PM
I use a track bike that is almost identical to my road bike. My road bike is 54 (st)x56.2 (tt) with a 73.2 seat angle and a 73 head angle. My track bike is 54x56 with head and seat angles of 73.5. I like to have them as close as possible and I have them custom built as such. I would go with the 53cm tt with the 1 cm shorter stem providing that the seat tube length and the head tube length are the right lengths for you. No use in going with the 53 tt if the bike is too big. I would not recommend going with a 2 cm shorter top tube unless your road bike has a 5cm stem or something like that.
re: track bike sizingQubeley
Aug 11, 2002 3:42 PM
I think track bikes have a little higher clearance than road bikes, meaning the BB is further away from the ground. A 50cm track bike will have a greater standover height than a 50cm road bike. So the seattube measurement is not as useful as the standover and the top tube length. It is probably best for you to check the catalog of the bike you are considering, and comparing the standover, 53cm might be a little big for you.
re: track bike sizingrbb
Aug 13, 2002 10:16 AM
I race track at T-town and have had some sizing issues as of recent. As a fix I just ordered a custom Russ Denny track frame(should be getting it next week!!!) and while talking to Russ about size/fit, he suggests .5 to 1cm shorter top tube on your track bike than your road. It makes sense, you'll be able to throw it around easier, be in the hooks more comfortably, and be a bit more aggressive with it.

-Bob